Improvements applied in the manufacture of lamps

ABSTRACT

The base and three elbowed sections of the lamp are rotatably and detachably secured together by a ring fixed inside the open end of one section and seated in an annular groove in the outer peripheral wall of a resisient crown fixed inside the adjacent open end of the next section. A luminous device with focusing lens is secured in like manner in the outer end of the last elbowed section and air vents are provided in the various sections for the circulation of air through the sections and over the transformer mounted in the base.

[ Nov. 6, 1973 1,039,354 9/1912Bonadio........-......1..............285/276 3,643,088 2/1972 Osteen et240/73 BJ Primary ExaminerSamuel S. Matthews Assistant Examiner-RussellE. Adams, Jr. Attorney-Leo A. Rosetta et al.

[57] ABSTRACT The base and three elbowed sections of the lamp arerotatably and detachably secured together by a ring fixed inside theopen end of one section and seated in an annular groove in the outerperipheral wall of a resisient crown fixed inside the adjacent open endof the next section. A luminous device with focusing lens is secured inlike manner in the outer end of the last elbowed section and air ventsare provided in the various sections for the circulation of air throughthe sections and over the transformer mounted in the base.

7 Claims, 5 Drawing Figures Barcelona,

Data

Spain 398,574

240/73 R F2ls 1/02 240/73 BJ, 73 R; 285/276 240/73 BJ, [5]] Int.

IMPROVEMENTS APPLIED IN THE MANUFACTURE OF LAMPS Inventor: AntonioCortes Riera,

Spain Assignee: Sociedad Anonima Metalarte,

Barcelona, Spain Filed: Mar. 28, 1972 Appl. No.: 238,837

Foreign Application Priority Jan. 4, 1972 References Cited UNITED STATESPATENTS United States Patent Riera [58] Field ofSearch.......................

IMPROVEMENTS APPLIED IN THE MANUFACTURE OF LAMPS The present inventionrefers to improvements applied to the manufacture of lamps, whichconsist in that the lamp is made up by different sections, which can beelbowed, and joinedin a revolving manner by one of their openings, whichallows that each one of the sections of the body of the lamp may acquirea desired position, independent from the positions of the adjacentsections, and which sections contain a lens with advance and returnmotion, so that the focus of the light may be scattered or made sharpwith intermediate variations, and also contain the necessary transformerso as to be able to alter the voltage.

For the purpose of correct interpretation, the following case ofpractical realization is described as a non li'mitative example of theinvention, with a page of drawings adjoined in which: I

FIGS. 1 and 2, are elevational views of the lamp according to theimprovements, and illustrate its application on a table or on a wall.

FIG. 3, is a front elevation of same lamp partially sectioned, in alarger scale.

.FIG. 4, is a sectioned side elevation of the lamp shown in FIG. 3; and

FIG. 5, is anenlarged detailed section according to line VV of FIG. 4.

Thelamp of this invention is made up by several elbowed pieces orsections 1 which are rotatably joined to the adjacent sections so as toallow one section to rotate on the other. The rotatable joint betweenadjacent sections comprises a ring 2 and a crown 3, which are placedrespectively on the inside of one of the ends of the cylinder shapedsections of the lamp, and in the inside of the end part of the otheradjacent cylindrical section to be coupled, the crown 3 having in one ofits edges a series of resilient press fingers 4, which are arranged in aperpendicular and annular manner, said press fingers 4 having on theirback part a convex ridge 5 which,when all the press fingers are inplace, form a ring-like groove 5a that is disposed inwardly of theconvex ridge and interrupted by separations 6 between each press finger.

Two adjacent cylindrical sections 1 are rotatably joined by facing thepoints of the press fingers 4 of one section towards the ring 2 of theother section and, by means of pressure, forcing the press finger 4 intothe ring 2 and seating the ring 2 inside the groove 50. Radial extendingabutment means 7 on the crown 3, being more prominent than the pressfingers 4'acts as a stop piece for the ring 2. When a simple separatingtraction is exerted on any of the two joined sections 1, and indeed theseparation is achieved when the antagonistic action of the press fingers4 is surpassed.

The rings 2 and the crowns 3 are provided with radial tailpieces 8, 8aon the outer edge of same, which are lodged incorresponding radialgrooves 9 of the interior part of the edge of the opening in which theymust remain, for which purpose the back part of these radial tail piecesare also grooved, in such a manner that their grooves link in with orare seated in the projections of the grooves 9. When a greater fasteningof the radial tailpieces 8, 8a to the grooves 9 of the interior walls ofthe openings of the sections 1 is desired, then, there also is a joiningadhesive 10.

To limit the rotation of one section 1 in relation to the other, and inorder that it does not reach 360, the

crown 3 and ring 2 respectively.

When the cr own 3 of press fingers 4, apart from coupling with the ring2 of the faced piece in a rotatory manner, must support the overhanginginternal luminous device 13 and the movable lens 14, with advance andreturn movements, then the press fingers are of different lenghts inrelation to each other, so that those that protrude most 4a act assupport and fastening means for the cantilever elements: 13 and 14.

On both the crown 3a which supports the lens 14 and the wall of thedifferent sections 1 of the lamp, there are openings 15 and 15a for therenewal of air in the interior of the structure of same; there also isopenings for the circulation of air in the base 25 of mentioned lamp,which contains a suitable transformer 17.

Having thoroughly described the nature of the invention, such changesand modifications as would occur to one skilled in the art areconsidered to be within the purview of this invention as fall within thescope of the appended claims.

I claim:

1. Improvements in the manufacture of lamps, characterized by a lampmade up by several cylinder shaped sections, including a base sectionand elbowed sections, which are rotatably joined by coupling means tothe ad:

jacent section, said coupling means comprising a ring and a crown, whichare fixed respectively on the inside of one of the ends of one of thecylinder shaped sections of the lamp, and on the inside of the openingof the other cylindrical section which is adjacent and is joined withthe first; the crown, in its free edge being provided with several pressfingers, arranged in an annular and perpendicular manner, said pressfingers having a concave groove on their outersurface, which in aconjoint manner form an annular groove interrupted by the separationwhich exists between eachpress finger, the inner peripheral edge of saidring being rotatably seated in said annular groove, the top edge of thepress fingers being more prominent than the concave groove therebyforming a stop piece .for the ring, whereby when a light separatingtraction is exerted on any of adjacent joined sections, separation willbe achieved when the antagonistic action of the press fingers issurpassed. p

i 2. lmprovementsin themanufacture of lampsjaccording to claim 1, inwhich the ring and the crown are provided with spaced radial tailpieceson the outer edge thereof set in corresponding grooved areas on theinside part of the edge of the opening in which they are fixed, the backpart of said radial tailpieces also being grooved and seated in thenotches that are between the projections of the grooves of the insidewalls of the 'sections are secured together by a joining adhesive.

4. Improvements in the manufacture of lamps, according to claim 1, inwhich cooperating stop means on the ring and on the crown limit therotation of a section in relation to an adjacent section, so that itdoes not reach 360.

5. Improvements in the manufacture of lamps, according to claim 1, inwhich when the crown of press fingers also supports an overhanginginternal luminous device and a movable lens, the press fingers being ofare openings for the circulation and renewal of air in the interior ofthe lamp.

7. Improvements in the manufacture of lamps according to claim 6, inwhich a transformer is mounted in the base of the lamp and extends intothe interior of the adjacent cylinder shaped section.

1. Improvements in the manufacture of lamps, characterized by a lampmade up by several cylinder shaped sections, including a base sectionand elbowed sections, which are rotatably joined by coupling means tothe adjacent section, said coupling means comprising a ring and a crown,which are fixed respectively on the inside of one of the ends of one ofthe cylinder shaped sections of the lamp, and on the inside of theopening of the other cylindrical section which is adjacent and is joinedwith the first; the crown, in its free edge being provided with severalpress fingers, arranged in an annular and perpendicular manner, saidpress fingers having a concave groove on their outer surface, which in aconjoint manner form an annular groove interrupted by the separationwhich exists between each press finger, the inner peripheral edge ofsaid ring being rotatably seated in said annular groove, the top edge ofthe press fingers being more prominent than the concave groove therebyforming a stop piece for the ring, whereby when a light separatingtraction is exerted on any of adjacent joined sections, separation willbe achieved when the antagonistic action of the press fingers issurpassed.
 2. Improvements in the manufacture of lamps, according toclaim 1, in which the ring and the crown are provided with spaced radialtailpieces on the outer edge thereof set in corresponding grooved areason the inside part of the edge of the opening in which they are fixed,the back part of said radial tailpieces also being grooved and seated inthe notches that are between the projections of the grooves of theinside walls of the openings.
 3. Improvements in the manufacture oflamps, according to claim 2, in which the radial tail-pieces and thegrooves on the interior walls of the openings of the sections aresecured together by a joining adhesive.
 4. Improvements in themanufacture of lamps, according to claim 1, in which cooperating stopmeans on the ring and on the crown limit the rotation of a section inrelation to an adjacent section, so that it does not reach 360*. 5.Improvements in the manufacture of lamps, according to claim 1, in whichwhen the crown of press fingers also supports an overhanging internalluminous device and a movable lens, the press fingers being of differentlengths in relation to each other, so that those that protrude most actas support and fastening means for the luminous device and lens. 6.ImprovementS in the manufacture of lamps, according to claim 5, in whichin the crown which supports the lens and in the walls of the differentsections of the lamp structure, and in the base of the lamp there areopenings for the circulation and renewal of air in the interior of thelamp.
 7. Improvements in the manufacture of lamps according to claim 6,in which a transformer is mounted in the base of the lamp and extendsinto the interior of the adjacent cylinder shaped section.